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could someone show me how to write a step function properly please?

LaTeX Practicing! :)
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in latex? or you mean a piecewise function?
yes, exactly
i have a nice template, but not with me. let me see if i can recreate it

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\[ f(x) = \left\{ \begin{array}{lr} x^2 & \text{if} x\leq 5\\ x-1 & \text{if } x >5 \end{array} \right. \]
the "text" part is an unnecessary frill
\[f(x) = \left\{ \begin{array}{lr} x^2 & \text{if } x\leq 5\\ x-1 & \text{if } x >5 \end{array} \right.\] there that looks better
\[f(x) = \left\{ \begin{array}{lr} x^2 & \text{if } x\leq 5\\ x-1 & \text{if } x >5 \end{array} \right.\]hm... I knew it had array in it somewhere but have never seen the lr thing before. Thanks Satellite!

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